Broken T56, what's this?
#1
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Last month I picked up a used GTO T56 with about 25000 miles since it was rebuilt. It was shipped UPS and the box was a little beaten up but upon inspection the tranny seemed fine.
A couple of days ago, I was giving it a good power washing to clean it up and as I rolled it onto it's side I heard a little rattle inside. It sounded like a bolt or nut was rattling around in the case. I pulled the slave cylinder off and cracked the front case open and found this little gem. I couldn't see anything that looked broken in the front half of the case, so I put it back together and dropped it off a transmission shop. It'll be a few days before they can tear it apart, but I'd like to have an idea going into it, what this part is.
Can anyone identify this for me?
Top:
![](http://i228.photobucket.com/albums/ee208/modi_photos/t56stuff008x_zps5060c04a.jpg)
Bottom:
![](http://i228.photobucket.com/albums/ee208/modi_photos/t56stuff007x_zps6e63ca21.jpg)
And here's a couple pics of the inside of the case. I see some similar parts, but not an exact match and nothing here looks broken:
![](http://i228.photobucket.com/albums/ee208/modi_photos/t56stuff009x_zps795db05c.jpg)
A couple of days ago, I was giving it a good power washing to clean it up and as I rolled it onto it's side I heard a little rattle inside. It sounded like a bolt or nut was rattling around in the case. I pulled the slave cylinder off and cracked the front case open and found this little gem. I couldn't see anything that looked broken in the front half of the case, so I put it back together and dropped it off a transmission shop. It'll be a few days before they can tear it apart, but I'd like to have an idea going into it, what this part is.
Can anyone identify this for me?
Top:
![](http://i228.photobucket.com/albums/ee208/modi_photos/t56stuff008x_zps5060c04a.jpg)
Bottom:
![](http://i228.photobucket.com/albums/ee208/modi_photos/t56stuff007x_zps6e63ca21.jpg)
And here's a couple pics of the inside of the case. I see some similar parts, but not an exact match and nothing here looks broken:
![](http://i228.photobucket.com/albums/ee208/modi_photos/t56stuff009x_zps795db05c.jpg)
![](http://i228.photobucket.com/albums/ee208/modi_photos/t56stuff012x_zps6b3b72c2.jpg)
#2
TECH Addict
iTrader: (9)
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It's the shift rail interlock (Part# 156 on the T56 diagram). Something must have whacked the shift rail violently to break that. It's where the shift fork links all rest/ride on the shift rail. You can see the other half of it in your next-to-last picture at the top, in between the upgraded steel 3/4 fork and the aluminum 1/2 fork behind it.
#3
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
It's the shift rail interlock (Part# 156 on the T56 diagram). Something must have whacked the shift rail violently to break that. It's where the shift fork links all rest/ride on the shift rail. You can see the other half of it in your next-to-last picture at the top, in between the upgraded steel 3/4 fork and the aluminum 1/2 fork behind it.
Also is this the piece that you're referring to? (this would be the good side, broken piece on the opposite side?)
![](http://i228.photobucket.com/albums/ee208/modi_photos/t56stuff009xx_zps5030e32b.jpg)